Viagra

Sexual contact is indeed a blessing for human being. The poisonous arrow of impotence badly injures the love life by making erection difficult to take place. Pfizer, one of the most innovative pharmaceutical companies, has introduced a magical drug by the name of Viagra, which fights impotence effectively. Impotence disappears when Viagra steps in. Viagra has been approved to be effective in men of every age group.

The process of erection is regulated by the level of cGMP in the penis. The production of cGMP starts when guannyly cyclase acts on GTP to form cGMP from it. To convert GTP into cGMP, guanylyl cyclase must be activated. Guanylyl cyclase is activated by a factor called Nitric Oxide. The Nitric Oxide is synthesized and released from the endothelial cells which are housed in the walls of the blood vessels of the penis. These vessels line the erectile tissue of the penis called carpus cavarnosa. cGMP makes the blood vessels dilate. Dilation of the blood vessels causes the blood inside them to rush out of these vessels to enter in the spaces of erectile tissue. Turgidity is created in the spongy tissue of the penis when its erectile tissue gets filled with the blood. This turgidity is responsible for erection. Erection is not strong enough if the level of cGMP falls below normal. Viagra has its unique action of not letting cGMP fall. Hence level of cGMP is maintained by the action of Viagra. As a result, enough blood rushes out of the blood vessels of the penis to make strong erection possible. However sexual stimulation should be accompanied with the drug to let potent erection take place.

The drug is available in 25 mg dosage, the standard prescribed dosage for starters and old men, 50 mg dosage, the intermediate dosage suitable for many users, 100 mg dosage, mostly prescribed and widely used drug dosage. Do not take the drug for more than once in 24 hours time, doing so could result in life threatening hypotension and ultimately circulatory shock. Possible drug side effects are diarrhea, pripism, nasal congestion, runny nose, cyanotic visual sensation and problems with hearing sensation. If these side effects keep occurring for more than a couple of hours, quit taking the drug and immediately consult your physician for further use of the drug. In case of having a history of heart, kidney and liver complications, and the drug must not be used without physician's recommendations. If you are already taking hear medications that contain nitrate, or taking erythromycin, protease inhibitors, do not take Viagra with as they are strongly contraindicated. The effective drug time is four hours starting from half an hour after drug administration. During this time, effective sexual stimulation would result in erection that could withstand an unusually long duration buying you more and more time of active sexual interaction with your partner.

To help ease our clients sexual difficulties and provide an effective and affordable means of enhancing male sexual strength, Viagra from our online pharmacy is one of the best options to be considered.